Hydrocarbon-burner.



Patented Jan. 2, 1917.

l nventor J. E. SHEAFFER.

HYDROCARBON BURNER.

APPLICATION FILED 0 :1. 2B. 1915.

Witnesses Attorneys bnrnn era remand or TQE.

HYDROCABBONBUENER.

Specification of Letters Patent.

Patented Jan. 2, 1917.

Application filed October 28, 1915. Serial No. 58,421.

To all whom it may concern Be it known that I, JAMns E. SHEAFFER, acitizen of the United States, residing at Burnham, in the county ofMifflin and State of Pennsylvania, have invented a new and usefulHydrocarbon-Burner, of which the following is a specification.

The present invention appertains to hydrocarbon or liquid fuel burners,and is particularly an improvement over the hydrocarbon burner disclosedin my Patent No. 1,140,621, issued May 25, 1915.

The object of the invention is the provision in a burner of the typedisclosed in said patent, of a novel refractory or metal dischargenozzle for enhancing the utility and efliciency of the burner, and novelmeans for atomizing and injecting the oil or other liquid fuel into theburner to provide the combustible mixture which is forced under pressurethrough the discharge nozzle.

It is also within the scope of the invention to provide a hydrocarbonburner having the foregoing improvements, which is simple andinexpensive in construction, and also practical and efficient in use.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

The invention is illustrated in the accompanying drawing, wherein:-

Figure 1 is an elevation of the improved burner, partly in section.Figs. 2 and 8 are cross sectional views taken on the lines 2-2 and 3-3of Fig.1.

In carrying out the invention, there is provided a frusto-conical ortapered casing or body 1, having its largest end disposed forwardly, andhaving the inner integral nozzles 2 and 3 between its ends. The nozzles2 and 3 project forwardly, the nozzle 2 being disposed in advance of thenozzle 3, and the nozzle 3 being slightly smaller than the nozzle 2 andprojecting into the basal or rear portion of the same. The forward endor tip of the nozzle 2 projects through the forward or largest end ofthe casing 1. The rear or smallest end of the casing 1 is provided witha reduced portion or boss 4:,

forming a rearwardly facing shoulder 5, and the casing 1 is alsoprovided with three annular series of slots or air inlets 6, 7 and 8.The slots 6 are disposed between the basal portion of the nozzle 2 andthe forward end of'the casing, and the slots 7 are disposed between thebasal portions of the nozzles 2 and 3, while the slots 8 are disposedbetween the basal portion of the nozzle 3 and the rear end of thecasing 1. The forward end of the casing 1 is provided with anoutturned'annular flange 9 having the annular lip or rim 10.

A refractory discharge nozzle 11 has its basal end seated against theforward end of the casing 1, and provided with an outstanding annularflange 12 fitting within the lip or rim 10 of the flange 9, anda ring orannulus 13 of angular cross section is fitted over the basal portion andflange 12 of the nozzle 11 to cooperate with the flange 9 and its lip orrim 10 for clamping the basal flange 12 of the nozzle 11 in place. Boltsor other securing elements 1 1 are engaged through the ring or annulus13 and the flange 9, for clamping the parts together and whereby whenthe bolts 11- are loosened and removed, the parts may be separated. Thefree end of the nozzle 11 is flared or enlarged, as at 11 and thetapered portion of the nozzle has a relatively thick wall, while thewall of the nozzle decreases inthickness from its basal to its free end.The nozzle 11 is provided with an annular series of relatively large airinlet apertures or openings 11 adjacent its'basal end, and with a secondannular series of apertures or openings 11 immediately in advance of anddisposed between the apertures 11. The apertures 1 11.1 provide airinlets, wherebyair can flow into the discharge nozzle for providingamore perfect combustible mixture, and the flaring of the nozzle 11produces a larger flame, and allows the flame to extend adjacent if notinto the flared or bell mouth of the nozzle 11. v

A frusto-co-nical or tapered shell or sleeve 15 is mounted for rotationupon the casing or body 1, and is preferably provided withan'outstanding handle or finger piece 15 for enabling the shell 15 to bereadily swung to open and closed positions. The oscillatory movement ofthe shell 15 is preferably limited by means of an arcuate slot 16provided in the shell 15, and a stud or lug 16 secured to the casing 1and extending through the slot 16. Theshell 15 provides an airregulator, it being provided with three annular series of slots oropenings 17, 18 and 19 cooperating with the respective slots 6, 7 and 8of the casing l to be brought into and out of registration therewith, asthe shell or regulator 15 1S swung back and" forth.

The casing is of circular cross section and has a smooth peripherywhereby the shell is rotatable snugly upon the casing for opening andclosing the air inlets of the casing.

The forward or largest end of the shell or regulator 15 abuts againstthe flange 9 of the casing 1, and a retaining nut 20 is threaded uponthe reduced end 1 of the casing 1 and bears against the rear or smallestend of the shell 15 for mounting the same rotatably in place upon thecasing. When the nut 20 and stop or lug 16 are removed, the shell orregulator 15 may be removed off of the casin 1.

tapered steam or air nozzle 22 has its smaller end 23 projecting intothe smaller end of the casing 1 and into-the larger end of the nozzle 3,the nozzle 22 being provided adjacent its smaller end with an enlargedportion 24 threaded within the smaller end ofthe casing 1. The largerend of the nozzle 22 which projects from the casing 1 is provided with arestricted opening or aperture 25, and the nozzle 22 is provided withalateral nipple or inlet 26 for the attachment of a steam or pressurefluid pipe to supply steam, air or other pressure fluid into the nozzle22.

A tapered oil or liquid fuel nozzle 27 projects into the nozzle 22 fromthe larger end thereof past the pressure fluid inlet 26, the nozzle 27being provided at its larger end with a threaded portion 28 threadedwithin the opening 25, and with an enlarged threaded portion or head 29bearing against the larger end of the nozzle 22 and adapted for theattachment of an oil or liquid fuel pipe to convey the oil into thenozzle 27. The nozzles 22 and 27 are coaxial with the other nozzles andcasing.

The nozzles 27, 22, 3, 2 and 11 are arranged in a longitudinal series,with the tips of the nozzles 27, 22, 3 and 2 projecting into the basalportions of the respective nozzles immediately in advance thereof. Thenozzles 27, 22, 3, 2 and 11 are also increased in size in succession.The parts of the burner may be readily cast from metal or otherwisemanufactured, and may be readily assem- H bled with One another, as wellas being readily separated for purpose of cleaning, repair orreplacement.

In use, the steam or pressure fluid is supplied to the nozzle 22 by wayof the inlet or port 26, and the oil or other liquid fuel is suppliedinto the nozzle 27.' When the steam or pressure fluid enters the nozzle22 pressure burner.

it passes around the nozzle 27 to heat the oil therein,whereby the oilis more readily atomized, and the steam in flowing past the tip of thenozzle 27 will atomize the oil and admix the same with the steam.Themixture is directed or forced through the nozzles 3, and 11 insuccession, and the passage of the mixture through each of said nozzleswill draw inair through the respective slots in the casing and shell.The mixture in-being zle 3 and tip 23 of the nozzle 22, so that air willbe drawn through the registerin-gslots S-19. Similarly, when the mixtureis the charged from the nozzleB to the nozzle 2,

air will be drawn through the registering ing flame and produces aperfect mixture.

and combustion at the tip of the burner,'no addltional air being requred to support combustionf The flame produces a m1-nimum amountof'smoke, andtheburneruses a minimum amount of fuel for a maxlmum amountof heat. The nozzle 11 provides-for a greater volume of the flame, andthe burner can be used either as a high or a low The burner can be usedupon various furnaces, boilers, and the like.

Due to the construction of the present burner, streams of air will beadmitted through the slots of the casing and shell or regulator and willpass through the annular spaces between the. concentric noz-' zles, toadmix withfthe steam and atomized fuel, to thoroughly agitate and. mix wthe steam, air and fuel for providing a highly combustible mixture. Theamount of air admitted into the casing maybe regulated by swinging oradjusting the shell or regulator 15 to bring theslots thereof more orless out of registration with the slotsof the casing 1.

hatis claimedas new is:

1. A hydrocarbon burner embodying a casing having an openend and anozzle projecting through said open end, a refractory discharge nozzlehaving a relatively thick cylindrical end portion abutting said end ofthe casing and in registration therewith, said end of the nozzle havingan.out-

turned relatively thick flange, and means clamping said flangeagainstthe' end of the casing, the free end of the discharge nozzlebeing flared, said nozzle decreasing; in thick ness to the flared end,the first mentioned nozzle projecting within the first mentioned r 75discharged from the nozzle 22 into the noz-' zle 3 will create a suctionbetween thenozend of the refractory nozzle, and the refractory nozzlehaving an annular series of air inlet openings in its periphery disposedin a plane spaced slightly from the end of the first mentioned nozzle.

2. A hydrocarbon burner embodying a casing having a nozzle therein andair inlets adjacent the basal end of said nozzle, a pressure fluidnozzle tapered from one end to the other and having an enlarged portionadjacent its smaller end threaded through one end of the casing andhaving its smaller end projecting into the basal portion of the firstmentioned nozzle, said pressure fluid nozzle having a lateral pressurefluid inlet port adjacent its larger end and a reduced copies of thispatent may be obtained for opening at its larger end, and a taperedliquid fuel nozzle threaded through the opening of the larger end of thepressure fluid nozzle and having an enlarged portion at its larger endbearing against the larger end of the pressure fluid nozzle, the liquidfuel nozzle being tapered similar to the pressure fluid nozzle andextending past the pressure fluid inlet port.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of tWo Witnesses.

JAMES E. SHEAFFER.

Witnesses:

T. O. WILLIAMSON, D. B. MGWILLIAMS.

five cents each, by addressing the Commissioner of Patents. Washington,D. C.

